Defence Exams MCQ & Objective Questions
Defence Exams play a crucial role in shaping the future of aspiring candidates in India. These exams not only assess knowledge but also test the ability to apply concepts in real-world scenarios. Practicing MCQs and objective questions is essential for effective exam preparation, as it helps students identify important questions and enhances their understanding of key topics.
What You Will Practise Here
Fundamentals of Defence Studies
Key Historical Events and Their Impact
Important Defence Policies and Strategies
Current Affairs Related to National Security
Basic Concepts of Military Operations
Understanding Defence Technologies
Analysing Defence Budget and Expenditure
Exam Relevance
The topics covered in Defence Exams are highly relevant across various educational boards, including CBSE and State Boards, as well as competitive exams like NEET and JEE. Students can expect questions that focus on historical events, current affairs, and fundamental concepts related to defence. Common question patterns include multiple-choice questions that assess both theoretical knowledge and practical application.
Common Mistakes Students Make
Overlooking current affairs, which are often integrated into exam questions.
Confusing similar historical events or dates, leading to incorrect answers.
Neglecting the importance of definitions and key terms in objective questions.
Relying solely on rote memorization instead of understanding concepts.
FAQs
Question: What types of questions can I expect in Defence Exams?Answer: You can expect a mix of MCQs covering historical events, current affairs, and fundamental concepts related to defence.
Question: How can I improve my performance in Defence Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Start your journey towards success by solving practice MCQs today! Testing your understanding will not only boost your confidence but also prepare you for the important Defence Exams ahead.
Q. Which of the following is equivalent to log_2(32)?
Show solution
Solution
log_2(32) = log_2(2^5) = 5.
Correct Answer:
B
— 5
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Q. Which of the following is NOT a characteristic of the Earth's crust?
A.
Thinnest layer
B.
Solid state
C.
Rich in metals
D.
Liquid state
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Solution
The Earth's crust is solid and is the thinnest layer, unlike the outer core which is in a liquid state.
Correct Answer:
D
— Liquid state
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Q. Which of the following is NOT a characteristic of the Earth's inner core? (2019)
A.
Solid state
B.
Composed of iron and nickel
C.
Liquid state
D.
High temperature
Show solution
Solution
The Earth's inner core is in a solid state, composed mainly of iron and nickel, despite the high temperature.
Correct Answer:
C
— Liquid state
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Q. Which of the following is NOT a characteristic of the Earth's outer core? (2023)
A.
Liquid state
B.
Composed of iron and nickel
C.
Responsible for magnetic field
D.
Solid state
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Solution
The outer core is in a liquid state, not solid, and is responsible for generating the Earth's magnetic field.
Correct Answer:
D
— Solid state
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Q. Which of the following is NOT a duty of a citizen as per Article 51A?
A.
To uphold the sovereignty and integrity of India
B.
To defend the country
C.
To pay income tax
D.
To promote scientific temper
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Solution
While paying taxes is a legal obligation, it is not listed as a Fundamental Duty under Article 51A.
Correct Answer:
C
— To pay income tax
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Q. Which of the following is NOT a function of the smooth endoplasmic reticulum?
A.
Lipid synthesis
B.
Detoxification of drugs
C.
Protein synthesis
D.
Calcium ion storage
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Solution
The smooth endoplasmic reticulum is involved in lipid synthesis, detoxification, and calcium storage, but not protein synthesis.
Correct Answer:
C
— Protein synthesis
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Q. Which of the following is NOT a Fundamental Duty as per Article 51A of the Indian Constitution?
A.
To promote harmony
B.
To safeguard public property
C.
To pay taxes
D.
To protect the environment
Show solution
Solution
Paying taxes is a legal obligation but not listed as a Fundamental Duty under Article 51A.
Correct Answer:
C
— To pay taxes
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Q. Which of the following is NOT a Fundamental Duty as per Article 51A?
A.
To promote harmony
B.
To safeguard public property
C.
To vote in elections
D.
To protect the environment
Show solution
Solution
Voting in elections is a civic duty but not listed as a Fundamental Duty under Article 51A of the Constitution.
Correct Answer:
C
— To vote in elections
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Q. Which of the following is NOT a Fundamental Duty under Article 51A?
A.
To promote harmony
B.
To safeguard public property
C.
To pay taxes
D.
To protect the environment
Show solution
Solution
Paying taxes is a legal obligation but is not listed as a Fundamental Duty under Article 51A of the Constitution.
Correct Answer:
C
— To pay taxes
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Q. Which of the following is NOT a fundamental duty under the Indian Constitution?
A.
To promote harmony
B.
To safeguard public property
C.
To vote in elections
D.
To protect the environment
Show solution
Solution
Voting in elections is a right and not a fundamental duty as per Article 51A of the Indian Constitution.
Correct Answer:
C
— To vote in elections
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Q. Which of the following is NOT a Fundamental Right in India?
A.
Right to Equality
B.
Right to Freedom
C.
Right to Property
D.
Right to Constitutional Remedies
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Solution
The Right to Property was removed from the list of Fundamental Rights and is now a legal right under Article 300A.
Correct Answer:
C
— Right to Property
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Q. Which of the following is NOT a fundamental right under the Indian Constitution?
A.
Right to Equality
B.
Right to Freedom
C.
Right to Property
D.
Right against Exploitation
Show solution
Solution
The Right to Property was removed from the list of Fundamental Rights and is now a legal right under Article 300A.
Correct Answer:
C
— Right to Property
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Q. Which of the following is NOT a Fundamental Right? (2019)
A.
Right to Education
B.
Right to Work
C.
Right to Privacy
D.
Right to Freedom of Speech
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Solution
The Right to Work is not explicitly mentioned as a Fundamental Right in the Constitution.
Correct Answer:
B
— Right to Work
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Q. Which of the following is NOT a macromolecule? (2021)
A.
Proteins
B.
Carbohydrates
C.
Lipids
D.
Water
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Solution
Water is a small molecule and not classified as a macromolecule, while proteins, carbohydrates, and lipids are.
Correct Answer:
D
— Water
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Q. Which of the following is NOT a macronutrient for plants?
A.
Nitrogen
B.
Phosphorus
C.
Potassium
D.
Iron
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Solution
Iron is considered a micronutrient, while nitrogen, phosphorus, and potassium are macronutrients essential for plant growth.
Correct Answer:
D
— Iron
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Q. Which of the following is NOT a part of the Directive Principles of State Policy? (2012)
A.
Right to Work
B.
Right to Education
C.
Right to Health
D.
Right to Property
Show solution
Solution
The Right to Property is not a Directive Principle; it was removed from the Fundamental Rights and is now a legal right.
Correct Answer:
D
— Right to Property
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Q. Which of the following is not a rational number? (2023)
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Solution
√3 is an irrational number, while 1/2, 0, and 3 are rational.
Correct Answer:
C
— √3
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Q. Which of the following is NOT a reason for the existence of time zones? (2019)
A.
Earth's rotation
B.
Political boundaries
C.
Latitude differences
D.
Geographical features
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Solution
Time zones are primarily based on longitude and the Earth's rotation, not latitude differences.
Correct Answer:
C
— Latitude differences
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Q. Which of the following is NOT a type of seismic wave? (2019)
A.
P-wave
B.
S-wave
C.
L-wave
D.
T-wave
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Solution
T-wave is not a recognized type of seismic wave; the main types are P-waves, S-waves, and surface waves (L-waves).
Correct Answer:
D
— T-wave
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Q. Which of the following is the capital of India?
A.
Mumbai
B.
Delhi
C.
Kolkata
D.
Chennai
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Solution
Delhi is the capital of India.
Correct Answer:
B
— Delhi
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Q. Which of the following is the conjugate of the complex number z = 2 - 3i?
A.
2 + 3i
B.
2 - 3i
C.
3 - 2i
D.
3 + 2i
Show solution
Solution
The conjugate of a complex number z = a + bi is given by z* = a - bi. Here, the conjugate is 2 + 3i.
Correct Answer:
A
— 2 + 3i
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Q. Which of the following is the conjugate of the complex number z = 5 - 2i? (2021)
A.
5 + 2i
B.
5 - 2i
C.
-5 + 2i
D.
-5 - 2i
Show solution
Solution
The conjugate of z = 5 - 2i is z* = 5 + 2i.
Correct Answer:
A
— 5 + 2i
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Q. Which of the following is the conjugate of the complex number z = 5 - 3i?
A.
5 + 3i
B.
5 - 3i
C.
3 - 5i
D.
3 + 5i
Show solution
Solution
The conjugate of a complex number z = a + bi is given by z* = a - bi. Here, the conjugate of 5 - 3i is 5 + 3i.
Correct Answer:
A
— 5 + 3i
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Q. Which of the following is the correct expansion of (x - 3)²?
A.
x² - 6x + 9
B.
x² + 6x + 9
C.
x² - 9
D.
x² - 3
Show solution
Solution
(x - 3)² = x² - 2(3)x + 3² = x² - 6x + 9.
Correct Answer:
A
— x² - 6x + 9
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Q. Which of the following is the correct expansion of (x - y)³?
A.
x³ - 3x²y + 3xy² - y³
B.
x³ - y³
C.
x³ - 3xy² + 3x²y - y³
D.
3x²y - 3xy²
Show solution
Solution
(x - y)³ = x³ - 3x²y + 3xy² - y³ by the binomial theorem.
Correct Answer:
A
— x³ - 3x²y + 3xy² - y³
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Q. Which of the following is the correct factorization of a² - b²?
A.
(a + b)(a - b)
B.
(a - b)(a - b)
C.
(a + b)(a + b)
D.
a² - 2ab + b²
Show solution
Solution
a² - b² = (a + b)(a - b) by the difference of squares identity.
Correct Answer:
A
— (a + b)(a - b)
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Q. Which of the following is the correct identity for (a - b)(a + b)? (2019)
A.
a² + b²
B.
a² - b²
C.
ab
D.
a - b
Show solution
Solution
(a - b)(a + b) = a² - b² by the difference of squares formula.
Correct Answer:
B
— a² - b²
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Q. Which of the following is the correct identity for (a - b)²?
A.
a² - 2ab + b²
B.
a² + 2ab + b²
C.
a² - b²
D.
2a² - 2b²
Show solution
Solution
(a - b)² = a² - 2ab + b² by the expansion of the square of a binomial.
Correct Answer:
A
— a² - 2ab + b²
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Q. Which of the following is the correct identity for (x + y + z)³?
A.
x³ + y³ + z³ + 3(x + y)(y + z)(z + x)
B.
x³ + y³ + z³ + 3xyz
C.
x³ + y³ + z³ + 3xy + 3yz + 3zx
D.
x³ + y³ + z³ - 3xyz
Show solution
Solution
(x + y + z)³ = x³ + y³ + z³ + 3xyz.
Correct Answer:
B
— x³ + y³ + z³ + 3xyz
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Q. Which of the following is the correct identity for (x + y)³?
A.
x³ + y³ + 3xy(x + y)
B.
x³ + y³ - 3xy(x + y)
C.
x³ + y³ + 3xy²
D.
x³ - y³
Show solution
Solution
(x + y)³ = x³ + y³ + 3xy(x + y) by the binomial expansion.
Correct Answer:
A
— x³ + y³ + 3xy(x + y)
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